09-24-2019, 05:08 PM
Join Date: Mar 2007
| | Re: Need some advice
Originally Posted by donh1298
Today, my starting pH was 7.69. My kh is 9.
Your tank water is highly buffered. pH drop is slight. There's no way to guess on your CO2 from tank water pH. Your drop checker is more accurate.
I've been doing some CO2 research... If you want more CO2 available for plants, you should add RO to bring down the pH & kH. Less than 7pH, and less than 2 kH. Do this instead of pumping in more CO2 that'll kill your fish.
When pH is above 7ish, only about 50% is CO2. The other is converted to bicarbonate, HCO3.
Lowering your lights is the first step for algae control though.
Last edited by mistergreen; 09-24-2019 at 05:22 PM..